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 C6 RS6 common faults View next topic
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HEKTOR
WOT Motorsport

Car: Avus B5 RS4

Joined: 16 Oct 2009
Posts: 3736


Location: Glasgow

PostPosted: Sun Jun 19, 2016 1:11 pm Reply with quoteBack to top

I have looked at a few buyers guides and read various threads. I would like to find out if there are common faults such as the wheel bearing issue or bigger issues to look out for.
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dhali
knowledgeable


Joined: 28 Jun 2008
Posts: 719



PostPosted: Sun Jun 19, 2016 1:46 pm Reply with quoteBack to top

There's an oil pump seal and water coolant pipe issues both require engine out to fix , although I heard now that the oil seal can be done with engine still in situ . But I bet it's still not cheap to fix .
BTW . You have just missed what looked like a cracking car ( if you want an avant ) on 246.com which had one of these issues fixed and coolant pipes were in very good condition all for 24k  too.
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HEKTOR
WOT Motorsport

Car: Avus B5 RS4

Joined: 16 Oct 2009
Posts: 3736


Location: Glasgow

PostPosted: Sun Jun 19, 2016 3:57 pm Reply with quoteBack to top

Many thanks for your reply.

I had read about the o ring and pipe issue.

I am hoping the issues are this limited.
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C J
Experienced

Car: RS4 B5
Power: 507
Torque: 741
Engine code: AZR

Joined: 16 Apr 2013
Posts: 3440


Location: Nottingham

PostPosted: Sun Jun 19, 2016 7:58 pm Reply with quoteBack to top

Give Ianh a shout. He's been through everything on his c6. Might be able to give you some real insight to the ins and outs!

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IanH755
knowledgeable

Car: C6 RS6 Avant
Power: 907hp
Torque: 830ft/lbs

Joined: 01 Jan 2014
Posts: 349


Location: Nr Maidstone, Kent

PostPosted: Sun Jun 19, 2016 11:42 pm Reply with quoteBack to top

Hi Hektor - Sadly the Oil Pump O-Rings and Coolant Pipes are "age" related failures so lots of cars are now starting to see one or both of these as they hit 7-8 years old.

The oil pump o-rings can be replaced without removing the engine but it's still at 1000 job (vs 2500 to pull the engine) but the coolant pipes need the engine out, regardless of what some Audi tech's have mentioned!

The Clicking Wheel Bearing issue seems to have been cured and very rarely heard about now.

That is about it, once those two engine out issues are sorted the car is extremely reliable, although a low battery can cause all kinds of electrical gremlins so be careful there!

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Old - Daytona C5 RS6 Avant - 500hp & 550ft/lbs - MRC'd

New - Daytona C6 RS6 Avant - 907HP & 830ft/lbs - MRC'd
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HEKTOR
WOT Motorsport

Car: Avus B5 RS4

Joined: 16 Oct 2009
Posts: 3736


Location: Glasgow

PostPosted: Mon Jun 20, 2016 7:28 am Reply with quoteBack to top

Much appreciated ian.

I'm a little surprised that there are so few issues. I expected there to be a number of niggles on top of the 2 expensive issues.

Are there other things to look out for such as corrosion on the body, are there any options that are a must have?

Most cars I have seen are 2g. It seems that 08-09 cars are 2g and the 2010- cars are 3g or it it a mix & match?
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IanH755
knowledgeable

Car: C6 RS6 Avant
Power: 907hp
Torque: 830ft/lbs

Joined: 01 Jan 2014
Posts: 349


Location: Nr Maidstone, Kent

PostPosted: Mon Jun 20, 2016 9:53 am Reply with quoteBack to top

Compared to the previous C5 it's extremely reliable. I mean there always be a few cars out there that are "Friday Afternoon Specials" with a continuous list of problems but generally they're very good. Bodywork wise there's slightly rusty arches but it's still pretty rare and the obligatory speed based stone chips to look out for.

2G - Pretty much spot on but for 2010 onwards it's a mix unless you're buying a saloon which are all 3G. In actual use there's very little "extra" the 3G gives you but it looks a bit better being a slightly higher resolution screen.

Options - ACC and Keyless Entry seem to be the most sought after but the base spec is actually pretty good anyway so the only "wouldn't it be awesome" option is the Ceramic brakes.

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Old - Daytona C5 RS6 Avant - 500hp & 550ft/lbs - MRC'd

New - Daytona C6 RS6 Avant - 907HP & 830ft/lbs - MRC'd
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HEKTOR
WOT Motorsport

Car: Avus B5 RS4

Joined: 16 Oct 2009
Posts: 3736


Location: Glasgow

PostPosted: Mon Jun 20, 2016 10:15 am Reply with quoteBack to top

Nice one ian, thanks for the info.

It will certainly help when looking at c6's. Im not 100% sure its the car to buy but it does everything i want it to and having plenty of space it will act perfectly as a second family car.

The ACC is something i loved in my gold r so having it on a rs6 would be ideal. I can take or leave most other things. Its a bonus if the car is well spec'd with options.

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